Whois & Analysis for db-engines.com

A NoSQL (originally referring to "non SQL", "non relational" or "not only SQL") database provides a mechanism for storage and retrieval of data which is modeled in means other than the tabular relations used in relational databases.

Such databases have existed since the late 1960s, but did not obtain the "NoSQL" moniker until a surge of popularity in the early twenty-first century, triggered by the needs of Web 2.0 companies such as Facebook, Google, and Amazon.com.

NoSQL databases are increasingly used in big data and real-time web applications.

NoSQL systems are also sometimes called "Not only SQL" to emphasize that they may support SQL-like query languages.

A database is an organized collection of data.

It is the collection of schemas, tables, queries, reports, views, and other objects.

A knowledge base (KB) is a technology used to store complex structured and unstructured information used by a computer system.

The initial use of the term was in connection with expert systems which were the first knowledge-based systems.

A relational database is a digital database whose organization is based on the relational model of data, as proposed by E.

F- Codd in 1970.

Information is that which informs.

In other words, it is the answer to a question of some kind.

It is thus related to data and knowledge, as data represents values attributed to parameters, and knowledge signifies understanding of real things or abstract concepts.

As it regards data, the information's existence is not necessarily coupled to an observer (it exists beyond an event horizon, for example), while in the case of knowledge, the information requires a cognitive observer.